This combination solar and battery powered low profile deck vent circulates fresh air in your boat, eliminating mold, mildew and musty air.
The 4" model can move as much as 1,000 cubic feet of air per hour. That's 24,000 cubic feet of air per day!
Installs directly on to the deck or in a hatch lens.

Use them in pairs, one for intake and one for exhaust for most effective air exchange.